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    Electronic Speed Controllers
    by MouldBuilder ๐Ÿ‡ฌ๐Ÿ‡ง ( Midshipman)
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    15 Posts 14 Replies 3 Photos 22 Likes
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    Martin555
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    ๐Ÿ“ Electronic Speed Controllers
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 56 minutes ago
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    Keep us updated on your testing.

    Martin555.
    If it looks right it probably is.
    MouldBuilder
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 6 hours ago
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    I guarantee it won`t blow my seals Martin.
    All will become clear before the test.
    Peter.๐Ÿ˜€
    1
    I promise I will finish a boat project before I start another......Maybe.
    Martin555
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    Online: 56 minutes ago
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    When you have your Gato trimmed correctly it should only be about a mug full of water, maybe less.
    But even pumping that amount of water in to the tank the air pressure will definitely be enough to to pop seals.

    Martin555.
    1
    If it looks right it probably is.
    MouldBuilder
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    Hi Martin.
    Yes I suspect you are right. This is what I will be testing keeping a close watch on the amp draw during filling. If the pump dies, then failure. I will have to get a high pressure pump. More money!!.
    I know you have said that it does not take too much water to submerge the sub, this will determine the back pressure produced. It might be lower than expected. If so, Success!!. If not,๐Ÿค”๐Ÿ˜‚
    1
    I promise I will finish a boat project before I start another......Maybe.
    Martin555
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    I don't know what pump you will be using but pressurising the air in the tank could severely damage the pump.

    Martin555.
    1
    If it looks right it probably is.
    MouldBuilder
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    Thanks guys.
    I have bought a cheap solenoid valve which is for the test only, unless it works well of course. I intend to pressurise the cylinder by compressing the air within so my test will mainly be to see how much water I can pump in before the pump stalls. Following one of your earlier comments Martin, I hope that I can get enough water in to sink the submarine which I believe is not too much. I hope to get all of the parts required for this test this week but I do have to do a fair bit of turning and drilling and tapping to prepare the cylinder to withstand the internal pressure. This might not be ready for a couple of weeks but I am hoping for a successful outcome. We will see.๐Ÿ˜Š
    1
    I promise I will finish a boat project before I start another......Maybe.
    Martin555
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    Hi Doug,
    I think the valve that Peter is talking about is a solenoid shut off.
    As for the night valve it has to be an expensive one as the cheaper ones tend to leek LOL!

    Martin555.
    1
    If it looks right it probably is.
    RNinMunich
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    ๐Ÿ“ Electronic Speed Controllers
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    Country: ๐Ÿ‡ฉ๐Ÿ‡ช Germany
    Online: 14 hours ago
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    "Can I wire two brushed 360 motors into one ESC"
    Yes you can Peter,
    That's what I did with my U25.
    My motors are 385s. The blue thing stuck to the starboard hull side, with two little white trim pots on it, is the ESC.
    The board bolted to the engine room forward bulkhead is the power distribution board to the motors and includes the spark suppressors.
    Cheers, Doug ๐Ÿ˜Ž
    2
    Young at heart - slightly older in other places ๐Ÿ˜‰ Cheers Doug
    RNinMunich
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    Country: ๐Ÿ‡ฉ๐Ÿ‡ช Germany
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    "Did you need a non return valve or shut off valve for the bladder."
    Martin may not Peter
    but I could sure use one at night ๐Ÿค”
    ๐Ÿ˜๐Ÿ˜Ž
    2
    Young at heart - slightly older in other places ๐Ÿ˜‰ Cheers Doug
    Martin555
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    Hi Peter,
    You can fit a solenoid valve.
    It will stop the water from working it's way back through the pump.
    I have not fitted one to my Gato as if something went wrong like losing power to the valve or pump then my sub will surface on its own after about two minutes.

    Martin555.
    1
    If it looks right it probably is.
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